Well....let's change that to something that is physically possible.
If you were travelling 99.99% the speed of light in one direction, and something else, say 1 light year away, was travelling in the opposite direction at 99.99% the speed of light. From YOUR perspective in the first ship, the light from the other ship would take....wait for it.....1 year.
Spacetime stretches and squishes based on your speed. That's WHY time dilation occurs.